From @RiotPhroxzon on X (source)

Jungle Champs
-There was a bit of confusion yesterday with the listed Diana, Brand changes
-These are mostly focused on Jungle, since their primary roles are still a bit stronger; this is in an effort to open up the meta a little more
-For Lee Sin, we’re looking at a power neutral change to increase a bit of his early skirmishing power at the cost of his mid-late game armor
Bot Lane Champs
-This patch we’re trying to do a bit of a bit of a meta shift away from Yunara and Sivir (they’ll still be viable), but some of the more spellcaster oriented ADC’s are going to rise up as a result
-There are also a few champs like Draven and Jinx that have been a bit weaker than their typical resting winrates and mastery curves would indicate
-They’re not super far off, so they’re just getting a bit of a pro focused nudge in places; Draven in his early fighting potential and Jinx in her ability to play in matchups at level 1 or combo off ally CC
Mid Lane Champs
-Some of the burst champs have become a bit weaker
-While this is a more Pro focused movement for now, we’re aware that there are some non-pro champs that need a similar treatment
-There are a lot of them and will require more of a concerted effort
-Our strategy for this in the short term is to create a more clear segmentation between champs who take more durable builds (eg. ROA builds) and champs who are a little more squishy and burst like in nature
-This will mean over time that some of the more durable champs will pay some tradeoffs in damage and the champs that are more burst oriented will become a bit more squishy in order to be allowed to have that level of burst
Systems
–We’re looking at a nerf to Redemption to reduce its priority amongst Tank Supports (because it gives them no strategic tradeoffs); it’s OK if they opt into it at some cost, but that’s not the case right now
-Secondly, we’re lowering the strength of Support in Pro a bit heading into worlds with putting Unsealed halfway back to where it was before. This should better strike the balance between it being untakeable and being a must take
Meta Strategy
-Our overall strategy this patch is to add a few more strategic options
-This includes AP junglers like Brand, Diana, Lillia (while nerfing some of the top champs to give them more space)
-And also shaking up the Midlane meta with some buffs to champions who have fallen a bit behind (these are typically burst champions like Ahri, Syndra, LeBlanc) and also Mel who’s had a bit of time to settle and drop some of her banrate and frustration
-We know Mel is always going to be a bit frustrating because of her W, but that feels like an acceptable cost to pay, given how it makes each game feel a bit different
-We’re mostly OK with where the midlane meta is otherwise, with many different archetypes being viable and these burst oriented champions need a bit more help
-Burst champions otherwise feel mostly OK though, especially with the buffs to AD Assassin items in recent patches
-Finally we’re doing a long awaited buff to Seraphine. I mentioned it in a post last week, but given her shallow mastery curve, we feel it’s appropriate to give her a buff, because for the winrates she’s posting, she’s a bit underpowered
Champion Buffs
Champion Nerfs
Champion Adjustments
System Nerfs
- Celestial Opposition – No longer slows if the user is dead. This is a Neeko W nerf
- Redemption – 50 Heal Nerf
- Unsealed Spellbook – Initial CD: 4m > 4.5m | Minimum CD: 1.5m > 2m